470864
Bromine
≥99.99% trace metals basis
Synonym(s):
Dibromine
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About This Item
vapor density
7.14 (vs air)
Quality Segment
vapor pressure
175 mmHg ( 20 °C), 671 mmHg ( 55 °C)
assay
≥99.5% (by Na2S2O3, titration), ≥99.99% trace metals basis
resistivity
7.8E18 μΩ-cm, 20°C
impurities
≤0.001% I2, ≤0.001% S compounds, <100 ppm total metallic impurities
evapn. residue
≤0.005%
bp
58.8 °C (lit.)
mp
−7.2 °C (lit.)
density
3.119 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.05%
cation traces
Ni: ≤5 ppm, heavy metals: ≤2 ppm
SMILES string
BrBr
InChI
1S/Br2/c1-2
InChI key
GDTBXPJZTBHREO-UHFFFAOYSA-N
Application
It can be used:
- To brominate alkylbenzenes at the benzylic position using photocatalytic conditions.
- To prepare brominated aromatic compounds by electrophilic aromatic substitution reactions in the presence of Lewis acid catalysts.
- For the bromination of carbonyl compounds at a carbonyl group via Hell-Volhard-Zelinski reaction in the presence of phosphorus trihalides.
- To prepare isocyanates, carbamates, or amines by reacting with primary amides in the presence of base via Hofmann rearrangement.
Other Notes
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A
Storage Class
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles
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